<template>
    <div class="app-container">
        <el-form :inline="true">
            <el-form-item label="菜单名称">
                <el-input
                    v-model="queryParams.menuName"
                    placeholder="请输入菜单名称"
                    clearable
                    size="small"
                    @keyup.enter.native="handleQuery"
                />
            </el-form-item>
            <el-form-item label="状态">
                <el-select v-model="queryParams.status" placeholder="菜单状态" clearable size="small">
                    <el-option
                        v-for="dict in statusOptions"
                        :key="dict.dictValue"
                        :label="dict.dictLabel"
                        :value="dict.dictValue"
                    />
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
                <el-button type="primary" icon="el-icon-plus" size="mini" @click="handleAdd"
                           v-hasPermi="['system:menu:add']">新增
                </el-button>
            </el-form-item>
        </el-form>

        <el-table
            v-loading="loading"
            :data="menuList"
            row-key="menuId"
            :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
        >
            <el-table-column prop="menuName" label="菜单名称" :show-overflow-tooltip="true" width="160"></el-table-column>
            <el-table-column prop="icon" label="图标" align="center" width="100">
                <template slot-scope="scope">
                    <svg-icon :icon-class="scope.row.icon"/>
                </template>
            </el-table-column>
            <el-table-column prop="orderNum" label="排序" width="60"></el-table-column>
            <el-table-column prop="perms" label="权限标识" :show-overflow-tooltip="true"></el-table-column>
            <el-table-column prop="component" label="组件路径" :show-overflow-tooltip="true"></el-table-column>
            <el-table-column prop="status" label="状态" :formatter="statusFormat" width="80"></el-table-column>
            <el-table-column label="创建时间" align="center" prop="createTime">
                <template slot-scope="scope">
                    <span>{{ parseTime(scope.row.createTime) }}</span>
                </template>
            </el-table-column>
            <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
                <template slot-scope="scope">
                    <el-button size="mini"
                               type="text"
                               icon="el-icon-edit"
                               @click="handleUpdate(scope.row)"
                               v-hasPermi="['system:menu:edit']"
                    >修改
                    </el-button>
                    <el-button
                        size="mini"
                        type="text"
                        icon="el-icon-plus"
                        @click="handleAdd(scope.row)"
                        v-hasPermi="['system:menu:add']"
                    >新增
                    </el-button>
                    <el-button
                        size="mini"
                        type="text"
                        icon="el-icon-delete"
                        @click="handleDelete(scope.row)"
                        v-hasPermi="['system:menu:remove']"
                    >删除
                    </el-button>
                </template>
            </el-table-column>
        </el-table>

        <!-- 添加或修改菜单对话框 -->
        <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
            <el-form ref="form" :model="form" :rules="rules" label-width="80px">
                <el-row>
                    <el-col :span="24">
                        <el-form-item label="上级菜单">
                            <treeselect
                                v-model="form.parentId"
                                :options="menuOptions"
                                :normalizer="normalizer"
                                :show-count="true"
                                placeholder="选择上级菜单"
                            />
                        </el-form-item>
                    </el-col>
                    <el-col :span="24">
                        <el-form-item label="菜单类型" prop="menuType">
                            <el-radio-group v-model="form.menuType">
                                <el-radio label="M">目录</el-radio>
                                <el-radio label="C">菜单</el-radio>
                                <el-radio label="F">按钮</el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                    <el-col :span="24">
                        <el-form-item v-if="form.menuType != 'F'" label="菜单图标">
                            <el-popover
                                placement="bottom-start"
                                width="460"
                                trigger="click"
                                @show="$refs['iconSelect'].reset()"
                            >
                                <IconSelect ref="iconSelect" @selected="selected"/>
                                <el-input slot="reference" v-model="form.icon" placeholder="点击选择图标" readonly>
                                    <svg-icon
                                        v-if="form.icon"
                                        slot="prefix"
                                        :icon-class="form.icon"
                                        class="el-input__icon"
                                        style="height: 32px;width: 16px;"
                                    />
                                    <i v-else slot="prefix" class="el-icon-search el-input__icon"/>
                                </el-input>
                            </el-popover>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item label="菜单名称" prop="menuName">
                            <el-input v-model="form.menuName" placeholder="请输入菜单名称"/>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item label="显示排序" prop="orderNum">
                            <el-input-number v-model="form.orderNum" controls-position="right" :min="0"/>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.menuType != 'F'" label="是否外链">
                            <el-radio-group v-model="form.isFrame">
                                <el-radio label="0">是</el-radio>
                                <el-radio label="1">否</el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.menuType != 'F'" label="路由地址" prop="path">
                            <el-input v-model="form.path" placeholder="请输入路由地址"/>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12" v-if="form.menuType == 'C'">
                        <el-form-item label="组件路径" prop="component">
                            <el-input v-model="form.component" placeholder="请输入组件路径"/>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.menuType != 'M'" label="权限标识">
                            <el-input v-model="form.perms" placeholder="请权限标识" maxlength="50"/>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.menuType != 'F'" label="显示状态">
                            <el-radio-group v-model="form.visible">
                                <el-radio
                                    v-for="dict in visibleOptions"
                                    :key="dict.dictValue"
                                    :label="dict.dictValue"
                                >{{dict.dictLabel}}
                                </el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.menuType != 'F'" label="菜单状态">
                            <el-radio-group v-model="form.status">
                                <el-radio
                                    v-for="dict in statusOptions"
                                    :key="dict.dictValue"
                                    :label="dict.dictValue"
                                >{{dict.dictLabel}}
                                </el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                </el-row>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button type="primary" @click="submitForm">确 定</el-button>
                <el-button @click="cancel">取 消</el-button>
            </div>
        </el-dialog>
    </div>
</template>

<script>
    import { listMenu, getMenu, delMenu, addMenu, updateMenu } from '@/api/system/menu'
    import Treeselect from '@riophae/vue-treeselect'
    import '@riophae/vue-treeselect/dist/vue-treeselect.css'
    import IconSelect from '@/components/IconSelect'

    export default {
        name: 'Menu',
        components: { Treeselect, IconSelect },
        data() {
            return {
                // 遮罩层
                loading: true,
                // 菜单表格树数据
                menuList: [],
                // 菜单树选项
                menuOptions: [],
                // 弹出层标题
                title: '',
                // 是否显示弹出层
                open: false,
                // 显示状态数据字典
                visibleOptions: [],
                // 菜单状态数据字典
                statusOptions: [],
                // 查询参数
                queryParams: {
                    menuName: undefined,
                    visible: undefined
                },
                // 表单参数
                form: {},
                // 表单校验
                rules: {
                    menuName: [
                        { required: true, message: '菜单名称不能为空', trigger: 'blur' }
                    ],
                    orderNum: [
                        { required: true, message: '菜单顺序不能为空', trigger: 'blur' }
                    ],
                    path: [
                        { required: true, message: '路由地址不能为空', trigger: 'blur' }
                    ]
                }
            }
        },
        created() {
            this.getList()
            this.getDicts('sys_show_hide').then(response => {
                this.visibleOptions = response.data
            })
            this.getDicts('sys_normal_disable').then(response => {
                this.statusOptions = response.data
            })
        },
        methods: {
            // 选择图标
            selected(name) {
                this.form.icon = name
            },
            /** 查询菜单列表 */
            getList() {
                this.loading = true
                listMenu(this.queryParams).then(response => {
                    this.menuList = this.handleTree(response.data, 'menuId')
                    this.loading = false
                })
            },
            /** 转换菜单数据结构 */
            normalizer(node) {
                if (node.children && !node.children.length) {
                    delete node.children
                }
                return {
                    id: node.menuId,
                    label: node.menuName,
                    children: node.children
                }
            },
            /** 查询菜单下拉树结构 */
            getTreeselect() {
                listMenu().then(response => {
                    this.menuOptions = []
                    const menu = { menuId: 0, menuName: '主类目', children: [] }
                    menu.children = this.handleTree(response.data, 'menuId')
                    this.menuOptions.push(menu)
                })
            },
            // 显示状态字典翻译
            visibleFormat(row, column) {
                if (row.menuType == 'F') {
                    return ''
                }
                return this.selectDictLabel(this.visibleOptions, row.visible)
            },
            // 菜单状态字典翻译
            statusFormat(row, column) {
                if (row.menuType == 'F') {
                    return ''
                }
                return this.selectDictLabel(this.statusOptions, row.status)
            },
            // 取消按钮
            cancel() {
                this.open = false
                this.reset()
            },
            // 表单重置
            reset() {
                this.form = {
                    menuId: undefined,
                    parentId: 0,
                    menuName: undefined,
                    icon: undefined,
                    menuType: 'M',
                    orderNum: undefined,
                    isFrame: '1',
                    visible: '0',
                    status: '0'
                }
                this.resetForm('form')
            },
            /** 搜索按钮操作 */
            handleQuery() {
                this.getList()
            },
            /** 新增按钮操作 */
            handleAdd(row) {
                this.reset()
                this.getTreeselect()
                if (row != null) {
                    this.form.parentId = row.menuId
                }
                this.open = true
                this.title = '添加菜单'
            },
            /** 修改按钮操作 */
            handleUpdate(row) {
                this.reset()
                this.getTreeselect()
                getMenu(row.menuId).then(response => {
                    this.form = response.data
                    this.open = true
                    this.title = '修改菜单'
                })
            },
            /** 提交按钮 */
            submitForm: function() {
                this.$refs['form'].validate(valid => {
                    if (valid) {
                        if (this.form.menuId != undefined) {
                            updateMenu(this.form).then(response => {
                                if (response.code === 200) {
                                    this.msgSuccess('修改成功')
                                    this.open = false
                                    this.getList()
                                } else {
                                    this.msgError(response.msg)
                                }
                            })
                        } else {
                            addMenu(this.form).then(response => {
                                if (response.code === 200) {
                                    this.msgSuccess('新增成功')
                                    this.open = false
                                    this.getList()
                                } else {
                                    this.msgError(response.msg)
                                }
                            })
                        }
                    }
                })
            },
            /** 删除按钮操作 */
            handleDelete(row) {
                this.$confirm('是否确认删除名称为"' + row.menuName + '"的数据项?', '警告', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(function() {
                    return delMenu(row.menuId)
                }).then(() => {
                    this.getList()
                    this.msgSuccess('删除成功')
                }).catch(function() {
                })
            }
        }
    }
</script>
